A cushioning energy-absorbing device and a child safety seat

By designing a buffer energy absorption device and utilizing the multi-level adjustment of the sliding block and energy absorption components, the problem of injury caused by excessive local acceleration during emergency braking or collision of a car is solved, achieving effective buffer protection.

CN117068014BActive Publication Date: 2026-06-26DONGFENG MOTOR GRP
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Patent Information

Application Number
CN202311233286.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-22
Publication Date
2026-06-26
Estimated Expiration
2043-09-22

AI Technical Summary

Technical Problem

Existing child safety seats, when secured by the seat belt during emergency braking or a collision, cannot effectively cushion the pulling force, leading to excessive local acceleration. This could cause the child safety seat to move forward rapidly and strangle the child.

Method used

Design a cushioning and energy-absorbing device, including a main housing, a pull rod, a sliding block, and an energy-absorbing component. By adjusting the component, the connection between the sliding block and the pull rod can be controlled to achieve multi-level cushioning effects to meet the needs of children of different weights.

Benefits of technology

It effectively avoids injuries caused by excessive local acceleration. By adjusting the number of sliding blocks and the force application area, it achieves multiple levels of buffering to protect children's safety.

✦ Generated by Eureka AI based on patent content.
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Abstract

The application discloses a buffering energy-absorbing device and a child safety seat, relates to the technical field of automobile safety accessories, and is used for connecting a first component and a second component. The buffering energy-absorbing device comprises a main shell fixed to the second component, a pull rod with a first end connected to the first component, a second end of the pull rod slidably extending into the main shell, two or more sliding blocks, the two or more sliding blocks being sleeved on the second end of the pull rod, a buffering space being formed between the sliding blocks, the pull rod and the inner wall of the main shell, an energy-absorbing assembly arranged in the buffering space and in contact with the two or more sliding blocks, and an adjusting assembly used for connecting at least one sliding block and the pull rod. In the case that the first component and the second component move relatively, the sliding blocks connected with the pull rod are extruded to realize buffering and energy absorption.
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